The series documents a year of riding the metro through 25 mixed-media drawings—a diary of my visually rich encounters under Mexico City while going about my daily business. I followed 2 specific rules while creating the artwork. I could only use imagery that I saw in my daily routine and not go “hunting” for cool pictures. And like Hiroshige's “54 stations of the Tokaido, the series had a specific start and end: September 2009-August 2010.